Klyris
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Derivatives · Anlage KAP · verifiable

From broker export to a finished Anlage KAP. Built for active private investors.

Klyris classifies futures, options and Stillhalter premiums the way German tax law requires, and shows its work, line by line, reconciled to your broker to the cent.

Double opt-in: we send one confirmation email, then only contact you about Klyris. Unsubscribe any time.

Example derivationIllustration · not tax advice
Broker export · IBKR Flex
Symbol
ESM4
Type
Future
Realized P/L
+2.000,00 USD
ECB USD/EUR
1,0800
Anlage KAP 2026
  • Line 19Ausländische Kapitalerträge
  • Line 21Termingeschäfte1.851,85 €traced
2.000,00 USD ÷ 1,0800 = 1.851,85 €reconciled

How it works

Three steps, fully traceable

  1. Upload your broker export

    Drop in your IBKR Flex Query (XML). Your data stays yours. Nothing is filed without you.

  2. Klyris derives & classifies

    Klyris classifies every position under German tax law and converts each figure to euro, automatically.

  3. Download Anlage KAP + audit trail

    Download your Anlage KAP values with the full derivation, ready for the Finanzamt.

The problem

Foreign broker reports don’t speak German tax law.

Reports from foreign brokers (Interactive Brokers & co.) aren’t prepared for German tax law. Futures, options and short-option (Stillhalter) premiums must be classified and separated correctly. By hand, that’s slow and error-prone.

  • Separate loss-offset pots (Verlustverrechnungstöpfe) for stocks vs. derivatives.
  • Stillhalter premiums and closing transactions need the correct tax treatment.
  • Every foreign-currency amount must be converted at the right reference rate.
  • One misclassification can cascade through the whole Anlage KAP.
IBKR_Flex_2026.csvraw export
Trades,DataDiscriminator,AssetClass,Symbol,
T,O,FUT,ESM4,2.000,00,USD,1,0800,...
T,C,OPT,AAPL 240621P,-312,50,USD,1,0791
T,C,FUT,MGCJ6,-550,74,USD,1,0791,...
CashReport,EUR,Withholding,-44,12,...
Codes,A;Ep;C  Fees,-2,14  Comm,-1,00
… 4.812 more rows …

What you get

Everything you get with Klyris

Every figure is checkable: you can see exactly how it was produced.

  • Import your broker data

    Bring in an IBKR Flex Query (XML). More brokers are planned.

  • Automatic tax classification

    Loss-offset pots, Stillhalter treatment, FX conversion via official ECB reference rates, and FIFO matching, applied automatically.

  • Ready-to-file Anlage KAP values

    Get the exact figures to enter into your Anlage KAP, mapped to the right lines.

  • Transparent, traceable derivation

    A clear PDF that shows how every number was derived. Finanzamt-ready, so you can defend each figure.

  • Export & transfer

    Export to PDF and CSV, plus a transfer sheet listing your figures line by line for Mein ELSTER.

The real output

See exactly what Klyris produces.

Not a mockup: the same output you get in the app. Every figure reconciles to your broker to the cent, and traces back to the broker row and the ECB rate it used.

Reconciles to the centExample output · not tax advice

Futures/options gains

1.045,98 €

Futures/options losses

-472,17 €

Deductible losses

472,17 €

LineCodeDescriptionEUR
19234/434Ausländische Kapitalerträge574,00 €
22235/435Verluste aus Termingeschäften472,00 €

Every figure traces back to its position:MESM6 · sell 2026-01-02 @ 6652.25 (ECB 0,85317) → buy 2026-01-05 @ 6530 (ECB 0,85734) · +1.045,98 €

Engine klyris-engine 0.1.0 · audit trail + Steuerberater brief, downloadable

  • Every figure reconciles to your broker's own realized P/L, to the cent.
  • Each position shows its broker row, the ECB reference rate, and the method.
  • An audit trail and a one-page Steuerberater brief with legal citations, ready to hand over.

Everything runs in your browser. Your broker data never leaves your device.

Try it liveJoin the waitlist

Who it’s for

Built for active private investors in Germany

Active German private investors who trade derivatives via foreign brokers, often with high transaction volume, who want the numbers right and a defensible paper trail for the Finanzamt.

Built for

  • Active private investors who trade futures or options
  • Anyone using Interactive Brokers or another foreign broker
  • People with one or several brokerage accounts (Depots)
  • Investors who want a defensible, verifiable paper trail

Not for

  • Company or fund accounts (Klyris is for private investors)
  • Crypto-only portfolios
  • Pure buy-and-hold ETF investors with no derivatives
  • A replacement for a Steuerberater (Klyris is software, not advice)

Pricing

One price per tax year

One price per tax year, all brokerage accounts (Depots) included. No per-transaction fees.

Per tax year

€249/ tax year, all accounts (Depots) included

  • All your accounts (Depots) and unlimited imports
  • Automatic tax classification & FX conversion
  • Ready-to-file Anlage KAP values
  • PDF derivation for every position
  • PDF & CSV export

Not included: dividends, interest, foreign withholding tax and funds (Anlage KAP-INV). Most complete for futures (Termingeschäfte). Options and stocks are only partially covered.

See the founding cohort

This is the price at the paid launch (planned: Herbst 2026). I am currently giving away 10 seats at no charge, for a tax year of your choice.

Founding cohort

10 seats for a tax year of your choice, at no charge

Klyris costs €249 per tax year. I am giving the first 10 seats away at no charge, for a tax year of your choice, in return for an honest assessment I may quote.

What the seat covers

  • Full access for a tax year of your choice: Anlage KAP values, the Zeile mapping and the complete derivation
  • Every download unlocked: the Nachweis PDF, the Finanzamt statement and the audit trail as CSV
  • A direct line to me if the broker export or the transfer gets stuck
  • No payment details, no automatic renewal, nothing to cancel

What I am asking for in return

An honest assessment, including the uncomfortable parts: what was unclear, what was missing, and whether the reconciliation against your broker export added up for you. If you agree, I will quote from it, named or anonymous, entirely as you prefer.

You can check this yourself

You do not have to send me anything to do so. The derivation reconciles every position against the result your broker states itself, and reports any difference. Your file never leaves your device, and I never see your figures.

I am keeping the cohort deliberately small so I can answer every question properly. Once the seats are taken, I close it.

Double opt-in: we send one confirmation email, then only contact you about Klyris. Unsubscribe any time.

Klyris derives figures and documents them. Filing remains your decision, and an individual case belongs with a Steuerberaterin or Steuerberater if there is any doubt.

Klyris is a software tool, not tax advice.

Status

Honest status: before launch

The computation works and reconciles against real broker exports. What is still missing is the paid launch and everything around it. Until then you can try the live preview with your own file, or claim one of the free founding seats.

  1. Live previewOpen to everyone, with your own file or the sample data
  2. Founding cohortnow10 free seats for a tax year of your choice
  3. Paid launchGeneral availability, planned for Herbst 2026

Waitlist

Be first to file with Klyris

Join the waitlist for early access, launch updates and founder pricing. No spam, just product news.

Double opt-in: we send one confirmation email, then only contact you about Klyris. Unsubscribe any time.